This is the device tree bindings documentation file
Signed-off-by: Olimpiu Dejeu <olim...@arcticsand.com>
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.../bindings/video/backlight/arcxcnn.txt | 29 ++++++++++++++++++++++
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Documentation/devicetree/bindings/video/backlight/arcxcnn.txt
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b/Documentation/devicetree/bindings/video/backlight/arcxcnn.txt
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+arcxcnn bindings
+
+Required properties:
+ - compatible: "arc,arcxcnn", "arc,arc2c0608"
+ - reg: I2C slave address (u8)
+
+Optional properties:
+ - bl-name: Backlight device name (string)
+ - init-brt: Initial value of backlight brightness (u32) low 16 bits used
+ - pwm-period: PWM period value. Set only PWM input mode used (u32)
+ - prg-addr: Register address of ROM area to be updated (u32) low 8 bits used
+ - prg-val: Register value to be updated (u32) low 8 bits used
+
+Example:
+
+ /* ARC2C0608 */
+ backlight@30 {
+ compatible = "arc,arc2c0608";
+ reg = <0x30>;
+
+ init-brt = <123>;
+
+ /* LED0+1 string enabled */
+ prg_06h {
+ prg-addr = <0x06>;
+ prg-val = <0x83>;
+ };
+
+ };
--
1.9.1
